diff --git a/config/initializers/rucaptcha.rb b/config/initializers/rucaptcha.rb
index 5e261bd..43f3e8c 100644
--- a/config/initializers/rucaptcha.rb
+++ b/config/initializers/rucaptcha.rb
@@ -2,7 +2,7 @@ RuCaptcha.configure do
   # Color style, default: :colorful, allows: [:colorful, :black_white]
   # self.style = :colorful
   # Custom captcha code expire time if you need, default: 2 minutes
-  self.expires_in = 60.minutes
+  self.expires_in = 1.days.to_i
   # [Requirement / 重要]
   # Store Captcha code where, this config more like Rails config.cache_store
   # default: Read config info from `Rails.application.config.cache_store`